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-rw-r--r--vendor/tokio/tests/io_write_all.rs51
1 files changed, 51 insertions, 0 deletions
diff --git a/vendor/tokio/tests/io_write_all.rs b/vendor/tokio/tests/io_write_all.rs
new file mode 100644
index 000000000..7ca02228a
--- /dev/null
+++ b/vendor/tokio/tests/io_write_all.rs
@@ -0,0 +1,51 @@
+#![warn(rust_2018_idioms)]
+#![cfg(feature = "full")]
+
+use tokio::io::{AsyncWrite, AsyncWriteExt};
+use tokio_test::assert_ok;
+
+use bytes::BytesMut;
+use std::cmp;
+use std::io;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+
+#[tokio::test]
+async fn write_all() {
+ struct Wr {
+ buf: BytesMut,
+ cnt: usize,
+ }
+
+ impl AsyncWrite for Wr {
+ fn poll_write(
+ mut self: Pin<&mut Self>,
+ _cx: &mut Context<'_>,
+ buf: &[u8],
+ ) -> Poll<io::Result<usize>> {
+ let n = cmp::min(4, buf.len());
+ let buf = &buf[0..n];
+
+ self.cnt += 1;
+ self.buf.extend(buf);
+ Ok(buf.len()).into()
+ }
+
+ fn poll_flush(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<io::Result<()>> {
+ Ok(()).into()
+ }
+
+ fn poll_shutdown(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<io::Result<()>> {
+ Ok(()).into()
+ }
+ }
+
+ let mut wr = Wr {
+ buf: BytesMut::with_capacity(64),
+ cnt: 0,
+ };
+
+ assert_ok!(wr.write_all(b"hello world").await);
+ assert_eq!(wr.buf, b"hello world"[..]);
+ assert_eq!(wr.cnt, 3);
+}